IPR may refer to:

Law

  • Intellectual property rights
  • Inter partes review, US procedure for challenging patents

Media

  • Independent Public Radio network, Minnesota, US
  • Indie Press Revolution, a sales network for role-playing games
  • WBST (Indiana Public Radio), a public radio network in east central Indiana
  • Interlochen Public Radio, Michigan, United States
  • Iowa Public Radio, US

Organisations

  • Institute for Plasma Research, India
  • Institute of Pacific Relations (1925–1960)
  • Institute for Policy Research and Catholic Studies, Washington, DC
  • Institute for Public Relations, University of Florida
  • Northwestern University Institute for Policy Research, Evanston, IL
  • Mikael Ter-Mikaelian Institute for Physical Research, Armenia
  • Prague Institute of Planning and Development, Czech Republic

Science and mathematics

  • Indirect potable reuse of reclaimed water
  • Interproximal reduction, an orthodontic treatment
  • Inverse Participation Ratio, measure of localization or purity of a quantum mechanical state

Chemistry

  • i-Pr or <sup>i</sup>Pr, abbreviations for the isopropyl group in organic chemistry
  • IPr, an N-heterocyclic carbene, see IMes

Others

  • Indicação de Proveniência Regulamentada (Indication of Regulated Origin), Portuguese wine designation